36W Turretboard Layout

[Bieworm]

Sounds dangerous...

If you think so, you probably shouldn't be allowed around sharp objects.

Bloody amp!!!

[geoff 1965]

nice work Craig!
give us some feedback on that effects loop when it's finished

[crgfrench]

Wired up the rectifier & some of the can cap.

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[turtle441]

Looks great. I've always wondered, the Ceriatone layouts always put a high voltage cap across the leads at the rectifier. What's the electrical function of that?

[crgfrench]

Looks great. I've always wondered, the Ceriatone layouts always put a high voltage cap across the leads at the rectifier. What's the electrical function of that?

That's a high frequency filter cap. 0.01uF 3kV.

[crgfrench]

Finished the power section

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[colossal]

It may be an illusion of forced perspective, but the left-most backup diode on the tube rectifier socket appears to be touching the body of the cap can. Killer job though, very clean.

[crgfrench]

It may be an illusion of forced perspective, but the left-most backup diode on the tube rectifier socket appears to be touching the body of the cap can. Killer job though, very clean.

Thanks for the feedback! Yes that's an illusion, the diode is about a centimeter below the can.

[colossal]

I figured, but thought I would mention it anyway. Better safe than ---POW!----

Looks really good, man. I have iron for a 36W build (scratches chin....)

[crgfrench]

Power tubes and half power switch wired up, ready to install the board.

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[Bieworm]

Craig.. you're doing a mighty fine build there!!! Ain't it a joy when you think of the money you'd have to spend on letting someone build it like THAT for you??

[crgfrench]

Craig.. you're doing a mighty fine build there!!! Ain't it a joy when you think of the money you'd have to spend on letting someone build it like THAT for you??

Thanks so much Bieworm. This is for a friend, he paid for all the parts and I'm contributing the labor for free.

[Riffmonster]

That looks just awesome Craig, super clean!!

[crgfrench]

That looks just awesome Craig, super clean!!

Thanks Riffmonster -- hopefully she'll be like a rock & roll girlfriend: looking clean and sounding dirty!

[crgfrench]

Speaker Jacks in

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[crgfrench]

Feedback circuit done

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[Bieworm]

Feedback circuit done 20200720_225232.jpg

Any special purpose for that? A 36 Watt won't lack headroom...
Is it for a tight sound?

[crgfrench]

Feedback circuit done 20200720_225232.jpg

Any special purpose for that? A 36 Watt won't lack headroom...
Is it for a tight sound?

Yes. And of course it can be switched off. With NFB off and running in half power it will be similar to a typical 18W circuit. The tone stack is shifted down a bit from a Marshall TMB, with the mid notch the same dB depth but the frequency moved down to 400Hz. The channels don't mix until they hit the PI, which is also a bit different than Marshall.

[crgfrench]

Made some little hideaway condominiums for the input resistors

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[crgfrench]

Pretty much all done except fx loop & cab

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